---
title: PixVerse Modify | Runware Docs
url: https://runware.ai/docs/models/pixverse-modify
description: Mask-aware video editing for swaps, removals, restyling, and prompt-driven scene changes
---
# PixVerse Modify

![PixVerse Modify](https://assets.runware.ai/covers/pixverse-modify.jpg)

PixVerse Modify is a video-to-video editing model for changing existing footage with text instructions, optional reference images, and masks. It supports subject swapping, object addition and removal, free-form scene edits such as weather or lighting changes, in-video text replacement, and full-video style transfer while preserving the source clip structure.

- **Status**: live
- **ID**: `pixverse:modify@0`
- Try in Playground
- **Creator**: PixVerse
- **Release Date**: April 15, 2026
- **Capabilities**: Image to Video, Video to Video, Edit, Checkpoint

## Pricing

$0.04 from, per second · ~2m 40s per request

**Rates** (per second)

- 360p: `$0.04`
- 540p: `$0.05`
- 720p: `$0.06`

**4 example generations**

- [inpaint](https://runware.ai/docs/models/pixverse-modify/examples#example-vaccine-cooler-field-placement-film) · 360p: `$0.28` (~1m 22s)
- [reference-to-video](https://runware.ai/docs/models/pixverse-modify/examples#example-sculptural-floor-lamp-placement-film) · 540p: `$0.35` (~2m 27s)
- [video-edit](https://runware.ai/docs/models/pixverse-modify/examples#example-embroidered-garment-workshop-music-video) · 720p: `$0.42` (~3m 39s)
- [video-edit](https://runware.ai/docs/models/pixverse-modify/examples#example-badlands-fossil-exhibit-promo) · 720p: `$0.42` (~2m 54s)

times vary, measured end to end · [How pricing works](https://runware.ai/docs/models-api/pricing)

## Compatibility & Validation

When `resolution` is provided, `inputs.referenceImages` or `inputs.video` is required.

## Request Parameters

**API Options**

Platform-level options for task execution and delivery.

### [taskType](https://runware.ai/docs/models/pixverse-modify#request-tasktype)

- **Type**: `string`
- **Required**: true
- **Value**: `videoInference`

Identifier for the type of task being performed.

### [taskUUID](https://runware.ai/docs/models/pixverse-modify#request-taskuuid)

- **Type**: `string`
- **Required**: true
- **Format**: `UUID v4`

UUID v4 identifier for tracking tasks and matching async responses. Must be unique per task.

### [outputType](https://runware.ai/docs/models/pixverse-modify#request-outputtype)

- **Type**: `string`
- **Default**: `URL`

Video output type.

**Allowed values**: `URL`

### [outputFormat](https://runware.ai/docs/models/pixverse-modify#request-outputformat)

- **Type**: `string`
- **Default**: `MP4`

Specifies the file format of the generated output. The available values depend on the task type and the specific model's capabilities.

- \`MP4\`: Widely supported video container (H.264), recommended for general use.
- \`WEBM\`: Optimized for web delivery.
- \`MOV\`: QuickTime format, common in professional workflows (Apple ecosystem).

**Allowed values**: `MP4` `WEBM` `MOV`

### [outputQuality](https://runware.ai/docs/models/pixverse-modify#request-outputquality)

- **Type**: `integer`
- **Min**: `20`
- **Max**: `99`
- **Default**: `95`

Compression quality of the output. Higher values preserve quality but increase file size.

### [webhookURL](https://runware.ai/docs/models/pixverse-modify#request-webhookurl)

- **Type**: `string`
- **Format**: `uri`

Webhook URL that receives JSON responses via HTTP POST when generation tasks complete. For batch requests with multiple results, each completed item triggers a separate webhook call as it becomes available.

**Learn more** (1 resource):

- [Webhooks](https://runware.ai/docs/models-api/webhooks) (platform)

### [deliveryMethod](https://runware.ai/docs/models/pixverse-modify#request-deliverymethod)

- **Type**: `string`
- **Default**: `async`

Determines how the API delivers task results.

**Allowed values**:

- `async` Returns an immediate acknowledgment with the task UUID. Poll for results using getResponse. Required for long-running tasks like video generation.

**Learn more** (1 resource):

- [Task Polling](https://runware.ai/docs/models-api/task-polling) (platform)

### [uploadEndpoint](https://runware.ai/docs/models/pixverse-modify#request-uploadendpoint)

- **Type**: `string`
- **Format**: `uri`

Specifies a URL where the generated content will be automatically uploaded using the HTTP PUT method. The raw binary data of the media file is sent directly as the request body. For secure uploads to cloud storage, use presigned URLs that include temporary authentication credentials.

**Common use cases:**

- **Cloud storage**: Upload directly to S3 buckets, Google Cloud Storage, or Azure Blob Storage using presigned URLs.
- **CDN integration**: Upload to content delivery networks for immediate distribution.

```text
// S3 presigned URL for secure upload
https://your-bucket.s3.amazonaws.com/generated/content.mp4?X-Amz-Signature=abc123&X-Amz-Expires=3600

// Google Cloud Storage presigned URL
https://storage.googleapis.com/your-bucket/content.jpg?X-Goog-Signature=xyz789

// Custom storage endpoint
https://storage.example.com/uploads/generated-image.jpg
```

The content data will be sent as the request body to the specified URL when generation is complete.

### [safety](https://runware.ai/docs/models/pixverse-modify#request-safety)

- **Path**: `safety.checkContent`
- **Type**: `object (2 properties)`

Content safety checking configuration for video generation.

#### [checkContent](https://runware.ai/docs/models/pixverse-modify#request-safety-checkcontent)

- **Path**: `safety.checkContent`
- **Type**: `boolean`

Enable or disable content safety checking. Increases total generation time.

#### [mode](https://runware.ai/docs/models/pixverse-modify#request-safety-mode)

- **Path**: `safety.mode`
- **Type**: `string`
- **Default**: `fast`

Safety checking mode for video generation.

**Allowed values**:

- `fast` Checks key frames.
- `full` Checks all frames.

### [ttl](https://runware.ai/docs/models/pixverse-modify#request-ttl)

- **Type**: `integer`
- **Min**: `60`

Time-to-live (TTL) in seconds for generated content. Only applies when `outputType` is `URL`.

### [includeCost](https://runware.ai/docs/models/pixverse-modify#request-includecost)

- **Type**: `boolean`

Include task cost in the response.

### [numberResults](https://runware.ai/docs/models/pixverse-modify#request-numberresults)

- **Type**: `integer`
- **Min**: `1`
- **Max**: `4`
- **Default**: `1`

Number of results to generate. Each result uses a different seed, producing variations of the same parameters.

**Inputs**

Input resources for the task (images, audio, etc). These must be nested inside the \`inputs\` object.

### [referenceImages](https://runware.ai/docs/models/pixverse-modify#request-inputs-referenceimages)

- **Path**: `inputs.referenceImages`
- **Type**: `array of strings`
- **Min items**: `1`
- **Max items**: `3`

List of reference images (UUID, URL, Data URI, or Base64).

### [video](https://runware.ai/docs/models/pixverse-modify#request-inputs-video)

- **Path**: `inputs.video`
- **Type**: `string`
- **Required**: true
- **Duration**: `up to 29.9s`

Video input (UUID or URL).

### [masks](https://runware.ai/docs/models/pixverse-modify#request-inputs-masks)

- **Path**: `inputs.masks`
- **Type**: `array of strings`
- **Max items**: `1`

Mask identifiers for targeted regions. Auto-generated when keyframe and referenceImages are provided without masks.

**Core Parameters**

Primary parameters that define the task output.

### [model](https://runware.ai/docs/models/pixverse-modify#request-model)

- **Type**: `string`
- **Required**: true
- **Value**: `pixverse:modify@0`

Identifier of the model to use for generation.

**Learn more** (3 resources):

- [Text To Image: Model Selection](https://runware.ai/docs/learn/text-to-image#model-selection) (learn)
- [Image Inpainting: Model Specialized Inpainting Models](https://runware.ai/docs/learn/image-inpainting#model-specialized-inpainting-models) (learn)
- [Image Outpainting: Other Critical Parameters](https://runware.ai/docs/learn/image-outpainting#other-critical-parameters) (learn)

### [positivePrompt](https://runware.ai/docs/models/pixverse-modify#request-positiveprompt)

- **Type**: `string`
- **Required**: true
- **Min**: `1`
- **Max**: `2048`

Text prompt describing elements to include in the generated output.

**Learn more** (1 resource):

- [Prompts](https://runware.ai/docs/learn/prompts) (learn)

### [resolution](https://runware.ai/docs/models/pixverse-modify#request-resolution)

- **Type**: `string`
- **Default**: `360p`

Resolution preset for the output. When used with input media, automatically matches the aspect ratio from the input.

**Allowed values**: `360p` `540p` `720p`

### [seed](https://runware.ai/docs/models/pixverse-modify#request-seed)

- **Type**: `integer`
- **Min**: `0`
- **Max**: `2147483647`

Random seed for reproducible generation. When not provided, a random seed is generated in the unsigned 32-bit range.

**Settings**

Technical parameters to fine-tune the inference process. These must be nested inside the \`settings\` object.

### [keyframe](https://runware.ai/docs/models/pixverse-modify#request-settings-keyframe)

- **Path**: `settings.keyframe`
- **Type**: `integer`
- **Min**: `0`

Frame index in the input video used as anchor for editing.

## Response Parameters

### [taskType](https://runware.ai/docs/models/pixverse-modify#response-tasktype)

- **Type**: `string`
- **Required**: true
- **Value**: `videoInference`

Identifier for the type of task this response belongs to.

### [taskUUID](https://runware.ai/docs/models/pixverse-modify#response-taskuuid)

- **Type**: `string`
- **Required**: true
- **Format**: `UUID v4`

UUID v4 identifier echoed from the original request, used to match async responses to their tasks.

### [videoUUID](https://runware.ai/docs/models/pixverse-modify#response-videouuid)

- **Type**: `string`
- **Required**: true
- **Format**: `UUID v4`

UUID of the output video.

### [videoURL](https://runware.ai/docs/models/pixverse-modify#response-videourl)

- **Type**: `string`
- **Format**: `uri`

URL of the output video.

### [videoBase64Data](https://runware.ai/docs/models/pixverse-modify#response-videobase64data)

- **Type**: `string`

Base64-encoded video data.

### [videoDataURI](https://runware.ai/docs/models/pixverse-modify#response-videodatauri)

- **Type**: `string`
- **Format**: `uri`

Data URI of the output video.

### [seed](https://runware.ai/docs/models/pixverse-modify#response-seed)

- **Type**: `integer`

The seed used for generation. If none was provided, shows the randomly generated seed.

### [NSFWContent](https://runware.ai/docs/models/pixverse-modify#response-nsfwcontent)

- **Type**: `boolean`

Flag indicating if NSFW content was detected.

### [cost](https://runware.ai/docs/models/pixverse-modify#response-cost)

- **Type**: `float`

Task cost in USD. Present when `includeCost` is set to `true` in the request.

## Examples

### reference-to-video (reference-to-video)

[Watch video](https://assets.runware.ai/examples/pixverse-modify/11034b20-b9a0-48e0-9672-66190da9d8e1.mp4)

```json
{
  "taskType": "videoInference",
  "taskUUID": "89e18d5a-a724-47a3-8a87-93d25e166a4a",
  "model": "pixverse:modify@0",
  "positivePrompt": "Place the exact sculptural floor lamp from the reference image into the open floor area to the right of the cobalt lounge chair, creating a polished interior-design product placement film. Preserve the lamp's distinctive dark bronze stem, cylindrical travertine base, folded fan-shaped parchment shade, proportions, materials, and color. Keep it stationary and correctly grounded on the limestone floor throughout the camera move. Match the room's scale, perspective, lens, warm late-afternoon sunlight, soft contact shadow, subtle window reflections, and changing parallax so the lamp appears physically present in the original footage. Let the parchment shade catch a gentle amber glow while retaining visible pleats. Preserve the source architecture, chair, curtains, sea view, camera movement, and calm editorial mood. Photorealistic, premium furniture-catalog cinematography, natural material detail, no people, no logos, no captions or added text.",
  "resolution": "540p",
  "settings": {
    "keyframe": 0
  },
  "inputs": {
    "video": "https://assets.runware.ai/assets/inputs/c61c083e-88e1-46ae-9a39-7b9f8afc34e5.mp4",
    "referenceImages": [
      "https://assets.runware.ai/assets/inputs/a729cb23-b06b-42b1-90ac-df96bb76cf33.jpg"
    ]
  }
}
```

---

### video-edit (video-edit)

[Watch video](https://assets.runware.ai/examples/pixverse-modify/ffb531cd-2834-476e-9b4a-2c65cbc7b4e1.mp4)

```json
{
  "taskType": "videoInference",
  "taskUUID": "246c72ed-540e-4001-8971-a864da609e80",
  "model": "pixverse:modify@0",
  "positivePrompt": "Transform the source footage into a handcrafted embroidered textile world for a chamber-pop music video. Preserve the exact dancers, choreography, camera move, timing, framing, and workshop composition. Render every surface as tactile woven cloth: cream canvas walls, indigo workwear, saffron and rust fabric bolts, visible linen grain, layered appliqué edges, chain-stitched outlines, loose fibers, and dimensional thread shadows. Turn each dancer’s moving arms and fabric into elegant flowing trails of red embroidery thread that follow the original motion, briefly forming botanical motifs before settling back into the cloth. Sewing tools become stitched fabric cutouts but remain in their original positions. Keep faces recognizable and expressive through refined thread portraiture. Warm late-afternoon light, rhythmic editorial polish, sophisticated folk-art direction, crisp material detail, cohesive limited palette, no added lettering, no logos, no new cuts.",
  "resolution": "720p",
  "inputs": {
    "video": "https://assets.runware.ai/assets/inputs/fd21b210-5311-4dee-b45e-84b6b9df51a2.mp4"
  }
}
```

---

### video-edit (video-edit)

[Watch video](https://assets.runware.ai/examples/pixverse-modify/ffc6bfe1-5182-452a-81fe-48d295e0e7f7.mp4)

```json
{
  "taskType": "videoInference",
  "taskUUID": "7a96a1ed-8d62-4786-a5fa-fb2428b61ee1",
  "model": "pixverse:modify@0",
  "positivePrompt": "Replace the neutral studio background with an authentic late-summer paleontology excavation camp in the Montana badlands. Surround the conservator with layered ochre sandstone ridges, marked dig squares, low canvas shade sails, specimen crates and a few distant field tools. Preserve the conservator, ceratopsian skull, worktable, brushing action, body movement, camera motion, framing and original timing exactly. Integrate the subject naturally into the new location with dry ground beneath the table, realistic contact shadows and warm late-afternoon sunlight consistent with the source lighting. Subtle breeze moving the shade canvas and sparse prairie grass; clear turquoise sky, dusty amber and mineral-red palette. Premium natural-history documentary cinematography, scientifically credible, restrained and photorealistic. No captions, logos or added people.",
  "resolution": "720p",
  "inputs": {
    "video": "https://assets.runware.ai/assets/inputs/86ca4a1f-b764-4781-abfa-ed2139aa38c4.mp4"
  }
}
```

---

### inpaint (inpaint)

[Watch video](https://assets.runware.ai/examples/pixverse-modify/cf74f255-4ae9-4fe1-b192-bb6bdc65c2f8.mp4)

```json
{
  "taskType": "videoInference",
  "taskUUID": "12f03bd1-6579-45bf-9a13-5e58ebac9c2c",
  "model": "pixverse:modify@0",
  "positivePrompt": "Replace the entire masked gray equipment case with a premium portable vaccine cold-chain carrier designed for remote medical teams. The carrier has a rugged compact rectangular body, rounded protective corners, an ice-white insulated shell, deep navy impact guards, brushed aluminum latches, a sturdy folded handle, and a slim integrated solar panel across the lid. Include a small recessed temperature display with subtle green indicator lights, but no logo, brand name, or readable lettering. Keep the product dimensions physically plausible on the existing table. Preserve the original airstrip, salt-flat horizon, table, camera arc, timing, perspective, and all motion exactly. Match the crisp high-altitude morning sunlight, contact shadows, reflections, and changing highlights on the carrier as the camera moves. Photorealistic commercial location cinematography, precise industrial-design details, clean humanitarian field-technology mood. The replacement must remain temporally stable with no warping, flicker, added objects, or alteration outside the mask.",
  "resolution": "360p",
  "settings": {
    "keyframe": 0
  },
  "inputs": {
    "video": "https://assets.runware.ai/assets/inputs/30f9d2d2-a1ff-4219-aac1-821ea0590895.mp4",
    "masks": [
      "https://assets.runware.ai/assets/inputs/d3eeea6a-349d-4e63-a0e1-dc58404c262b.png"
    ]
  }
}
```